Design and Development of Bilayer Composite using Different Cross-linkers

International Journal of Polymer and Textile Engineering

© 2020 by SSRG - IJPTE Journal

Volume 7 Issue 3

Year of Publication : 2020

Authors : Preeti Gupta, Roli Purwar

10.14445/23942592/IJPTE-V7I3P102

How to Cite?

Preeti Gupta, Roli Purwar, "Design and Development of Bilayer Composite using Different Cross-linkers," SSRG International Journal of Polymer and Textile Engineering, vol. 7,  no. 3, pp. 12-17, 2020. Crossref, https://doi.org/10.14445/23942592/IJPTE-V7I3P102

Abstract:

Composites can be assumed as a boon for enhancing the mechanical strength of hydrogels. In the present study, bilayer composites are developed using cotton substrate and poly (acrylamide –co –acrylic acid) hydrogel system through free radical polymerization. The parameters for the development of bilayer composites were optimized in terms of grafting yield. The maximum grafting with 0.1 % by (w/w) PEG and 0.3% (w/w) MBAAm was 102% and 184%. The optimised conditions for maximum grafting (0.23 ± 0.08 mm thick layer) were initiator concentration 5% (w/V),monomer molar ratio 1:1, monomer concentration 15%, reaction time 55 minutes and reaction temperature 50C. Morphology of the composites was characterized by Fourier Transform Infrared spectroscopy (FTIR), and their mechanical properties were tested using Universal Tensile Machine (UTM). The stress-strain curve data suggests higher mechanical strength of composites as compared to hydrogel film. These results support the reinforcement of the strength of the hydrogel after converting it into a composite.

Keywords:

Bilayer composite, Cross-linker, Grafting, Hydrogel, Mechanical strength

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